dragline bucket 拉随斗
walking dragline 行动式索斗挖掘机 ; 步行式拉铲挖掘机
dragline scraper 带式刮土机
Mexican dragline 管沟铲
marsh dragline 沼泽地拉铲挖土机
dragline crane operator 牵引式起重机操作员 ; 吊斗铲起重机操作员
dragline stripper 剥离电铲
dragline dredger 拉铲挖泥船 ; 拉索式挖掘机
Objective To obtain the whole length gene of dragline.
目的为获得蜘蛛拖丝蛋白全基因。
The selection of dragline is a key problem to be handled when applying dragline for open cast in surface mining.
露天矿应用拉斗铲倒堆工艺的关键问题首先要做好拉斗铲的选型。
A new study reveals that dragline silk, the stuff spiders use to rappel, has a molecular structure that makes it resilient to twisting.
悬在丝上的蜘蛛身体为什么不容易晃动？法国研究人员发现，原来蜘蛛丝中含有一种特殊的分子结构，能使蛛丝富有弹性，很容易克服摆动。
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